What sealant to use - shaft tube

[cmedsailor]

On my Beneteau, as the arrow on the photo shows, there's some kind of sealant right where the shaft tube exists the boat (skeg). The sealant is very old and cracked and I would like to replace it. Any idea what to use? 3M 5200 probably? Or some type of Sikaflex (which one)? I have also found somewhere in the internet that Beneteau uses PMS60 glue whatever that is...

 

[ghostlymoron]

I've been using PU40 from tool station for underwater sealing. Same formulation as SIKAflex apparently but much cheaper. http://www.toolstation.com/m/part.html?p=67949

 

[vyv_cox]

PMS 60 http://www.emfi.com/en/produits/products.html?cp=75007 Safety sheet doesn't tell us but it does look like it may be a polyurethane. Like ghostlymoron, I would use PU40 for this job, or Sikaflex 291 if you like to spend twice as much.